ICVA Veterinary Diagnostic Imaging 2

Question 1

In computed tomography (CT), Hounsfield units (HU) are used to measure:

Accepted Answer

Electron density relative to water

Answer

Signal intensity of hydrogen protons

Answer

Sound wave attenuation coefficient

Answer

Radiotracer uptake in tissues

Question 2

Which of the following best describes the appearance of acute hemorrhage on T1-weighted MRI?

Accepted Answer

Hypointense (dark)

Answer

Hyperintense (bright)

Answer

Isointense to muscle

Answer

Variable depending on field strength only

Question 3

Nuclear scintigraphy (bone scan) in veterinary patients primarily detects:

Accepted Answer

Areas of increased osteoblastic activity

Answer

Structural bone fractures

Answer

Cortical bone density loss

Answer

Soft tissue mineralization

Question 4

A dog presents with a caudal abdominal mass. Ultrasound shows a large structure with multiple anechoic compartments separated by hyperechoic septa. This finding is MOST consistent with:

Accepted Answer

Multiloculated cystic structure

Answer

Solid hepatic neoplasia

Answer

Simple renal cyst

Answer

Mineralized adrenal mass

Question 5

Which radiographic finding is most consistent with a left-sided congestive heart failure in a dog?

Accepted Answer

Pulmonary venous distension and perihilar interstitial to alveolar pattern

Answer

Pulmonary hyperinflation

Answer

Pleural effusion only

Answer

Hepatomegaly with ascites

Question 6

Fluoroscopy is most useful in veterinary medicine for evaluating:

Accepted Answer

Dynamic real-time motion studies such as swallowing

Answer

Bone density and mineralization

Answer

Fetal viability in pregnant animals

Answer

Soft tissue masses within the thorax

Question 7

When performing abdominal radiography to detect free peritoneal gas (pneumoperitoneum), the MOST sensitive patient positioning is:

Accepted Answer

Left lateral recumbent with horizontal beam

Answer

Ventrodorsal (VD) with horizontal beam

Answer

Dorsoventral (DV) standing

Answer

Right lateral recumbent standard view